org.locationtech.jts.geom.Geometry.getCoordinate()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中org.locationtech.jts.geom.Geometry.getCoordinate()方法的一些代码示例，展示了Geometry.getCoordinate()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Geometry.getCoordinate()方法的具体详情如下：
包路径：org.locationtech.jts.geom.Geometry
类名称：Geometry
方法名：getCoordinate

Geometry.getCoordinate介绍

[英]Returns a vertex of this Geometry (usually, but not necessarily, the first one). The returned coordinate should not be assumed to be an actual Coordinate object used in the internal representation.
[中]返回此Geometry的顶点（通常，但不一定是第一个）。不应假定返回的坐标是内部表示中使用的实际坐标对象。

代码示例

代码示例来源：origin: prestodb/presto

  1. @SqlNullable
  2. @Description("Returns a float between 0 and 1 representing the location of the closest point on the LineString to the given Point, as a fraction of total 2d line length.")
  3. @ScalarFunction("line_locate_point")
  4. @SqlType(DOUBLE)
  5. public static Double lineLocatePoint(@SqlType(GEOMETRY_TYPE_NAME) Slice lineSlice, @SqlType(GEOMETRY_TYPE_NAME) Slice pointSlice)
  6. {
  7.   Geometry line = JtsGeometrySerde.deserialize(lineSlice);
  8.   Geometry point = JtsGeometrySerde.deserialize(pointSlice);
  9.   if (line.isEmpty() || point.isEmpty()) {
  10.     return null;
  11.   }
  12.   GeometryType lineType = GeometryType.getForJtsGeometryType(line.getGeometryType());
  13.   if (lineType != GeometryType.LINE_STRING && lineType != GeometryType.MULTI_LINE_STRING) {
  14.     throw new PrestoException(INVALID_FUNCTION_ARGUMENT, format("First argument to line_locate_point must be a LineString or a MultiLineString. Got: %s", line.getGeometryType()));
  15.   }
  16.   GeometryType pointType = GeometryType.getForJtsGeometryType(point.getGeometryType());
  17.   if (pointType != GeometryType.POINT) {
  18.     throw new PrestoException(INVALID_FUNCTION_ARGUMENT, format("Second argument to line_locate_point must be a Point. Got: %s", point.getGeometryType()));
  19.   }
  20.   return new LengthIndexedLine(line).indexOf(point.getCoordinate()) / line.getLength();
  21. }

代码示例来源：origin: geotools/geotools

  1. public Coordinate getCoordinate() {
  2.   return geometry.getCoordinate();
  3. }

代码示例来源：origin: geotools/geotools

  1. public Number getX(int series, int item) {
  2.   // TODO: return the centroid
  3.   return geometries.get(series).getCoordinate().x;
  4. }

代码示例来源：origin: geotools/geotools

  1. public Number getY(int series, int item) {
  2.   return geometries.get(series).getCoordinate().x;
  3. }

代码示例来源：origin: geotools/geotools

  1. /**
  2.  * Return D as defined by SDO_GTYPE (either 2,3 or 4).
  3.  *
  4.  * <p>For normal JTS Geometry this will be 2 or 3 depending if geom.getCoordinate.z is
  5.  * Double.NaN.
  6.  *
  7.  * <p>Subclasses may override as required.
  8.  *
  9.  * @param geom
  10.  * @return <code>3</code>
  11.  */
  12. public static int D(Geometry geom) {
  13.   CoordinateSequenceFactory f = geom.getFactory().getCoordinateSequenceFactory();
  14.   if (f instanceof CoordinateAccessFactory) {
  15.     return ((CoordinateAccessFactory) f).getDimension();
  16.   } else if (geom == null || geom.getCoordinate() == null || geom.isEmpty()) {
  17.     return 2;
  18.   } else {
  19.     // return 3;
  20.     return Double.isNaN(geom.getCoordinate().z) ? 2 : 3;
  21.   }
  22. }

代码示例来源：origin: geotools/geotools

  1. /**
  2.  * Gets a point to represent the Geometry. If the Geometry is a point, this is returned.
  3.  * Otherwise, the centroid is used.
  4.  *
  5.  * @param g the geometry to find a point for
  6.  * @return a point representing the Geometry
  7.  */
  8. private static Coordinate getPoint(Geometry g) {
  9.   if (g.getNumPoints() == 1) return g.getCoordinate();
  10.   return g.getCentroid().getCoordinate();
  11. }

代码示例来源：origin: geotools/geotools

  1. /**
  2.  * Gets a point to represent the Geometry. If the Geometry is a point, this is returned.
  3.  * Otherwise, the centroid is used.
  4.  *
  5.  * @param g the geometry to find a point for
  6.  * @return a point representing the Geometry
  7.  */
  8. private static Coordinate getRepresentativePoint(Geometry g) {
  9.   if (g.getNumPoints() == 1) return g.getCoordinate();
  10.   return g.getCentroid().getCoordinate();
  11. }

代码示例来源：origin: geotools/geotools

  1. Coordinate c = (mp.getGeometryN(t)).getCoordinate();
  2. buffer.putDouble(c.x);
  3. buffer.putDouble(c.y);
  4.   Coordinate c = (mp.getGeometryN(t)).getCoordinate();
  5.   double z = c.z;

代码示例来源：origin: geotools/geotools

  1. private static Geometry pointInGeometry(Geometry g) {
  2.   Point p = g.getCentroid();
  3.   if (g instanceof Polygon) {
  4.     // if the geometry is heavily generalized centroid computation may fail and return NaN
  5.     if (Double.isNaN(p.getX()) || Double.isNaN(p.getY()))
  6.       return g.getFactory().createPoint(g.getCoordinate());
  7.     // otherwise let's check if the point is inside. Again, this check and
  8.     // "getInteriorPoint"
  9.     // will work only if the geometry is valid
  10.     if (g.isValid() && !g.contains(p)) {
  11.       try {
  12.         p = g.getInteriorPoint();
  13.       } catch (Exception e) {
  14.         // generalized geometries might make interior point go bye bye
  15.         return p;
  16.       }
  17.     } else {
  18.       return p;
  19.     }
  20.   }
  21.   return p;
  22. }

代码示例来源：origin: geotools/geotools

  1. Coordinate p = geom.getCoordinate();
  2. srcPt[0] = p.x;
  3. srcPt[1] = p.y;

代码示例来源：origin: geotools/geotools

  1. /**
  2.  * Finds the centroid of the input geometry if input = point, line, polygon --> return a point
  3.  * that represents the centroid of that geom if input = geometry collection --> return a
  4.  * multipoint that represents the centoid of each sub-geom
  5.  *
  6.  * @param g
  7.  */
  8. public static Geometry getCentroid(Geometry g) {
  9.   if (g instanceof Point || g instanceof MultiPoint) {
  10.     return g;
  11.   } else if (g instanceof GeometryCollection) {
  12.     final GeometryCollection gc = (GeometryCollection) g;
  13.     final Coordinate[] pts = new Coordinate[gc.getNumGeometries()];
  14.     final int length = gc.getNumGeometries();
  15.     for (int t = 0; t < length; t++) {
  16.       pts[t] = pointInGeometry(gc.getGeometryN(t)).getCoordinate();
  17.     }
  18.     return g.getFactory().createMultiPoint(pts);
  19.   } else if (g != null) {
  20.     return pointInGeometry(g);
  21.   }
  22.   return null;
  23. }

代码示例来源：origin: geotools/geotools

  1. @Test
  2. public void multiPointWithInnerParens() throws Exception {
  3.   String WKT = "MULTIPOINT ((111 -47), (110 -46.5))";
  4.   WKTReader reader = new WKTReader2();
  5.   Geometry geometry = reader.read(WKT);
  6.   assertNotNull(geometry);
  7.   assertTrue(geometry instanceof MultiPoint);
  8.   MultiPoint mp = (MultiPoint) geometry;
  9.   assertEquals(2, mp.getNumGeometries());
  10.   assertEquals(new Coordinate(111, -47), mp.getGeometryN(0).getCoordinate());
  11.   assertEquals(new Coordinate(110, -46.5), mp.getGeometryN(1).getCoordinate());
  12. }

代码示例来源：origin: geotools/geotools

  1. @Test
  2. public void multiPoint() throws Exception {
  3.   String WKT = "MULTIPOINT (111 -47, 110 -46.5)";
  4.   WKTReader reader = new WKTReader2();
  5.   Geometry geometry = reader.read(WKT);
  6.   assertNotNull(geometry);
  7.   assertTrue(geometry instanceof MultiPoint);
  8.   MultiPoint mp = (MultiPoint) geometry;
  9.   assertEquals(2, mp.getNumGeometries());
  10.   assertEquals(new Coordinate(111, -47), mp.getGeometryN(0).getCoordinate());
  11.   assertEquals(new Coordinate(110, -46.5), mp.getGeometryN(1).getCoordinate());
  12. }

代码示例来源：origin: geotools/geotools

  1. @Test
  2. public void testToGeographic() throws Exception {
  3.   String wkt =
  4.       "GEOGCS[\"GDA94\","
  5.           + " DATUM[\"Geocentric Datum of Australia 1994\","
  6.           + "  SPHEROID[\"GRS 1980\", 6378137.0, 298.257222101, AUTHORITY[\"EPSG\",\"7019\"]],"
  7.           + "  TOWGS84[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0], "
  8.           + " AUTHORITY[\"EPSG\",\"6283\"]], "
  9.           + " PRIMEM[\"Greenwich\", 0.0, AUTHORITY[\"EPSG\",\"8901\"]],"
  10.           + " UNIT[\"degree\", 0.017453292519943295], "
  11.           + " AXIS[\"Geodetic longitude\", EAST], "
  12.           + " AXIS[\"Geodetic latitude\", NORTH], "
  13.           + " AXIS[\"Ellipsoidal height\", UP], "
  14.           + " AUTHORITY[\"EPSG\",\"4939\"]]";
  15.   CoordinateReferenceSystem gda94 = CRS.parseWKT(wkt);
  16.   GeometryFactory gf = new GeometryFactory();
  17.   Point point = gf.createPoint(new Coordinate(130.875825803896, -16.4491956225999, 0.0));
  18.   Geometry worldPoint = JTS.toGeographic(point, gda94);
  19.   assertTrue(worldPoint instanceof Point);
  20.   assertEquals(point.getX(), worldPoint.getCoordinate().x, 0.00000001);
  21. }

代码示例来源：origin: geotools/geotools

  1. public void testDifferentCRS() throws Exception {
  2.   CoordinateReferenceSystem srcCRS = DefaultGeographicCRS.WGS84;
  3.   GeometryFactory fac = new GeometryFactory();
  4.   Point p = fac.createPoint(new Coordinate(10, 10));
  5.   SimpleFeatureCollection features = createTestFeatureCollection(srcCRS, p);
  6.   FeatureReader<SimpleFeatureType, SimpleFeature> original = DataUtilities.reader(features);
  7.   CoordinateReferenceSystem destCRS = DefaultEngineeringCRS.CARTESIAN_2D;
  8.   try (ForceCoordinateSystemFeatureReader modified =
  9.       new ForceCoordinateSystemFeatureReader(DataUtilities.reader(features), destCRS); ) {
  10.     SimpleFeature f1 = original.next();
  11.     SimpleFeature f2 = modified.next();
  12.     assertEquals(
  13.         ((Geometry) f1.getDefaultGeometry()).getCoordinate(),
  14.         ((Geometry) f2.getDefaultGeometry()).getCoordinate());
  15.     SimpleFeatureType f1Type = f1.getFeatureType();
  16.     SimpleFeatureType f2Type = f2.getFeatureType();
  17.     assertFalse(
  18.         f1Type.getCoordinateReferenceSystem()
  19.             .equals(f2Type.getCoordinateReferenceSystem()));
  20.     assertEquals(srcCRS, f1Type.getCoordinateReferenceSystem());
  21.     assertEquals(srcCRS, f1Type.getGeometryDescriptor().getCoordinateReferenceSystem());
  22.     assertEquals(destCRS, f2Type.getCoordinateReferenceSystem());
  23.     assertEquals(destCRS, f2Type.getGeometryDescriptor().getCoordinateReferenceSystem());
  24.     assertFalse(original.hasNext());
  25.     assertFalse(modified.hasNext());
  26.     assertNotNull(modified.builder);
  27.   }
  28. }

代码示例来源：origin: geotools/geotools

  1. public void testBounds() throws Exception {
  2.   GeometryFactory gf = new GeometryFactory();
  3.   Geometry[] g = new Geometry[4];
  4.   g[0] = gf.createPoint(new Coordinate(0, 0));
  5.   g[1] = gf.createPoint(new Coordinate(0, 10));
  6.   g[2] = gf.createPoint(new Coordinate(10, 0));
  7.   g[3] = gf.createPoint(new Coordinate(10, 10));
  8.   GeometryCollection gc = gf.createGeometryCollection(g);
  9.   SimpleFeatureTypeBuilder tb = new SimpleFeatureTypeBuilder();
  10.   tb.setName("bounds");
  11.   tb.setCRS(null);
  12.   tb.add("p1", Point.class);
  13.   tb.add("p2", Point.class);
  14.   tb.add("p3", Point.class);
  15.   tb.add("p4", Point.class);
  16.   SimpleFeatureType t = tb.buildFeatureType();
  17.   SimpleFeature f = SimpleFeatureBuilder.build(t, g, null);
  18.   assertEquals(gc.getEnvelopeInternal(), f.getBounds());
  19.   g[1].getCoordinate().y = 20;
  20.   g[2].getCoordinate().x = 20;
  21.   f.setAttribute(1, g[1]);
  22.   f.setAttribute(2, g[2]);
  23.   gc = gf.createGeometryCollection(g);
  24.   assertEquals(gc.getEnvelopeInternal(), f.getBounds());
  25. }

代码示例来源：origin: geotools/geotools

  1. ((Geometry) f1.getDefaultGeometry()).getCoordinate(),
  2.     ((Geometry) f2.getDefaultGeometry()).getCoordinate());
  3. SimpleFeatureType f1Type = f1.getFeatureType();
  4. SimpleFeatureType f2Type = f2.getFeatureType();

代码示例来源：origin: geotools/geotools

  1. public void testDifferentCRS() throws Exception {
  2.   CoordinateReferenceSystem srcCRS = DefaultGeographicCRS.WGS84;
  3.   GeometryFactory fac = new GeometryFactory();
  4.   Point p = fac.createPoint(new Coordinate(10, 10));
  5.   SimpleFeatureCollection collection = createDatastore(srcCRS, p);
  6.   SimpleFeatureIterator original = collection.features();
  7.   CoordinateReferenceSystem destCRS = DefaultEngineeringCRS.CARTESIAN_2D;
  8.   ForceCoordinateSystemIterator modified =
  9.       new ForceCoordinateSystemIterator(
  10.           collection.features(), collection.getSchema(), destCRS);
  11.   SimpleFeature f1 = original.next();
  12.   SimpleFeature f2 = modified.next();
  13.   assertEquals(
  14.       ((Geometry) f1.getDefaultGeometry()).getCoordinate(),
  15.       ((Geometry) f2.getDefaultGeometry()).getCoordinate());
  16.   assertFalse(
  17.       f1.getFeatureType()
  18.           .getCoordinateReferenceSystem()
  19.           .equals(f2.getFeatureType().getCoordinateReferenceSystem()));
  20.   assertEquals(srcCRS, f1.getFeatureType().getCoordinateReferenceSystem());
  21.   assertEquals(
  22.       srcCRS, f1.getFeatureType().getGeometryDescriptor().getCoordinateReferenceSystem());
  23.   assertEquals(destCRS, f2.getFeatureType().getCoordinateReferenceSystem());
  24.   assertEquals(
  25.       destCRS,
  26.       f2.getFeatureType().getGeometryDescriptor().getCoordinateReferenceSystem());
  27.   assertFalse(original.hasNext());
  28.   assertFalse(modified.hasNext());
  29.   assertNotNull(modified.builder);
  30. }

代码示例来源：origin: geotools/geotools

  1. ((Geometry) f1.getDefaultGeometry()).getCoordinate(),
  2.     ((Geometry) f2.getDefaultGeometry()).getCoordinate());
  3. assertFalse(
  4.     f2.getFeatureType()

代码示例来源：origin: geotools/geotools

  1. assertEquals("geom", 2.0, geometry.getCoordinate().y);
  2. assertEquals("fid preservation", "fid1", feature1.getID());

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